Paula Is Interested in Finding Out Whether Infants Can Distinguish

question 148

Multiple Choice

Paula is interested in finding out whether infants can distinguish between bitter and salty tastes. What would be the most effective way to investigate her question?

• A) Ask adults when they first remembered eating something bitter and something salty.
• B) Repeatedly present one taste - either bitter or salty - and see whether infants habituate to it.
• C) Observe infants' facial expressions or head movements to see whether they respond differently to bitter and salty tastes.
• D) Use infants or toddlers who are old enough to answer questions about how things taste.

---

Definitions:

Trypsin

An enzyme produced in the pancreas that helps digest proteins in the small intestine.

Chymotrypsin

An enzyme located in the small intestine that digests proteins into smaller peptide fragments.

Pancreas

A glandular organ in the digestive system and endocrine system of vertebrates, producing digestive enzymes and hormones such as insulin.

Digestive System

A group of organs responsible for the breakdown of food, absorption of nutrients, and elimination of waste in organisms.